Type-writing machine.



PATENTED AUG. 13, 1907 W. R. POX. TYPE WRITING MACHINE.

APPLICATION FILED APE.23, 1906.

2 SHEETS-SHEET 1.

W'itrgcsscs:

Att Yt a7 UNETED srsrns TYPE-WRITING: MAGHIJE.

No. assess Specification of Letters E'aten't.

Patented Aug. 13, 3.907.

Application filed April 23,1906. Sorislllo. 313,296.

To all whom it may concern:

Be it known that 1, WILLIAM R. Fox, a: citizen of the United States, residing at Grand Rapids, county oiKent, State of Michigan, have invented certain new and useful Improvements in Type-Writing Machines, eiwhich the following is e. specification.

; This invention relates to improvements in carriages for typewriting machhics, particularly of the front- .strike variety.

The objects of this invention are: first: to provide an improved construction or" carriage in which the piston is readily detachable; second: to provide an 1 improved means for'attuching and detaching the can I view of said ball retainer.

riage from the iremeof the machine; third: to provide an improvedconstruction or ways and ball retainers for carriages of typewriting machines; and fourth: to 'provide an improved construction of platen detent and broke. Fmther objects and objects relating to structural details, will definitely appear from the detailed description to follow.

I accomplish the objects of my invention by the devices and means described in the following specificstion. I

The invention is clearly the claims.

A structure embodying the features of my invention is clearly illustrated in the accompanying drawing forming a. partof this specification, in which Figure 1 is a pla n View oi the upper portion or a typewriter showing myimproved carriage in position; Fig. 2 is on end elevation view of the structure ing in Fig. 1, taken from the right-hand end of that figure, the platen twirler being removed; Fig. 3 is a. detail sectionfl end elevation taken on line 3-3 of Fig. 1, showing details of platen detcnt and brake mechanism. Fig. 4 is an enlarged detail sectional view taken on line -1-i of Fig. 1, showing the details or" means for securing my improved carriage detachably to the machine. Fig. 5 is a detail sectional view taken on line 5-5 of Figs. 1 and 2, showing my inrproved cerriageretztiner device put in place to lock the carriage and ball ways together when the carriage is detnched; Fig. 6 is a detail View of the said carriage retainer device; Fig. 7-is a. detail view of my improved ball retainer in place; and Fig. 8 is a detsil perspective defined and pointed out in In the drawing, the sectional views are taken loolzing in the direction of the little arrows at the ends of the section lines, and similar letters of reference refer to similar parts throughout the several views.

Referring to the lettered parts of the drawing: the main frame A of the machine is of the design of the improved Fox typewriters, provided with top plates A A which support the carriage The carriage l B is provided with a front bar B provided with suitable brood fiat ball race on the underside to correspond to a broad fiat ball race on the top plate A. These fiat ball races are at the top and bottom respectively of broad grooves. The hall L is retained in place by the bell retainers 1/ made or" sheet metal, the ends of which are turned upward and the sides of which are turned downward to loosely engage the broad grooves and to properly guide the ball within the said ball races, in said broad grooves.

' A suitable pointerX is at the front of the machine, and is oi the usual design, except that the screw holes are slotted to permit its ready removal in detaching can-loge. g I

The rear carriage bar B is fitted with a. hall raceoi the grooved type, and a. detachable bar A' on top of the top plate A of the machine Whichis formed acorresponding grooved bell race. The opposite ends of this plate A are provided with downwsird projecting pins a which are screw-threaded thereinto and fit into, suitable sockets aim the top plate A of the machine. The pinsa are provided with transverse tapered holes, 'zmd set screws a, with tapered points, engage these tapered holes and draw-the top plates securely down in position.

hen it is desired to detach the carriage, oops I are secured to the top bar A, plugs I on said caps I extend therefrom. into the ball race, the upper ends of the caps I being hooked at I to engage over the end of the bar B of the crinis-ge. The caps are secured in place by the screws 2' in thcholcs inthe opposite ends of the topbzir A, there being oi course a similar cup at each end. The plugs I" are slightly larger than the bulls and hold the parts sufficiently separated to prevent indenture oi the wsys or injury to the balls. I provide a pin is on the top plate to which I attach the driving strap of the Carriage, while meking these changes. The stop K is attached to the underside of the rear part of the corriugeorrn-B on a bracket 5 which has a. head .l projecting downward, clearly appears in Figs. 1 and 2, when the some is used for driving the carriage. The upper portion of the spring-driven drum K also appears in Fig. 2.

The platen C is on theshaft C which extends through a. bushing 0. Each end her of the frame is notched, the notch losing a port of ahexagon at the bottom to receive the bearing busliingc. A slide H is arranged in a suitable way on each end bar B, and is retained by a. set screw it" extending through a slot h therein. The rear end ol-this slide 11 is upturned at ll, affording a. handle for manipulating tiresome. "he front end of the slide H embraces the bushing c securely, forms a. firm bearing furlhe ends of the she-ft 0''. it will be observed that the bushing can be firmly ch d liy means of theset screw h. through the.

ot ii in the slide ii.

is secured At the end 01' the platen roll is the lever for actuating the same and the ratchet means for retaining it, as well as the brake mechanism. The detent means consists of an arm E which is pivoted to the rod D and bears a roll e which fits into curved notches around the periphery of the head of the platen. This arm E is urged into contact with the p1atenhead by the spring e, the inner end of which is secured to the bushing 0. An arm G is also pivoted on the rod D and is provided with a brake-shoe G for contacting with the face of the platen, the same being urged inwardly by the spring g. A lever F is pivoted at f on the head of the platen and is provided with a pin E which engages suitable notches on the underside of the arm E and strikes into a notch on the end of the arm G so that by adjustment of the lever F the brake can be raised and the detent roller E brought into-engagement, or both the detent roll and the brake can be brought into engagement, or the brake be elevated and the detentroll be brought into action. In the position illustrated in the drawing, the brake is elevated and the detent roll E engages the platen. By pulling'the lever F one notch toward the front of the machine, both the brake and the detent pawl will be elevated and by swinging the lever one notch further forward, the detent roll E will be elevated and thebrake will be applied.

I desire to remark that the details of construction can be considerably varied without departing from;

as new, and desire to secure by Letters Patent, is

1. In a front strike typewritiiig machine, the combina tion of the main frame A with top plates A A", the i'ront plate A having a suitable ball race on its top and the rear plate A being provided with sockets o; a rear bar A detachably secured to the top plate A by downwardly depending pins (1. extending into the sockets u, the said pins being provided with laterally extending tapered holes; taper pointed set screws n fitting into the holes in said pins u to draw the top bar A securely against its seat, a typewriter carriage with front and rear rail and side bars B, the front and rear rails being provided with suit' able ball races on their under surface, the ball race at the front being provided with a comparatively broad contact surface to permit; free movement on the ball; a ball re tainer L of sheet metal, i'llOlOllQ'llllillllill sides of which are turned down to (it into the sides oi the lower part of the ball race and the ends or which are turned upwardly to be embraced by the upper portion of the ball race; clip pieces to join the rear rail B of the carriage to the detachable top rail A, consisting of plates 1 with hooks 1'. at the upper end to embrace the rear bar of the carriage, being provided with screws i for attaching the same to the rear bar of the frame; a detachable pointer on said typewriter frame extending over the said detachable carriage; the platen on a suitable spindle; bearing bushing embracing the spindle; a slide on the said bar of the carriage adjustable to embrace the bushing and retain the platen detachably upon said carriage; a shaft parallel with the said platen: a ratchet with curved notches on the end of said platen; an arm with a detent roller to rest in the notches of said ratchet; a spring connecting the said arm to the bushing on the platen spindle; a second arm carrying a suitable brake shoe to rest against the platen, having a notch in its end; a spring connected to said brake arm and to the carriage frame drawing the said brake arm normally toward lho plipen; a lover with a plojli'lillg pin arranged to on e both the detent arm and the brake arm at diiTori-nt points. whereby lhe adjustment of said lover regulates the brake on the deteut so that both can be thrown outer both can be thrown in, or they may be brought into independent use, by the manipulation of said.

lever, eo-acting for the purpose specified.

2. in a typewriting machine, the combination of the carriage supported by suitable means to reciprocate laterally across the machine,'the end bars of which are suitablv notched; the platen i. on a suitable spindle; a hearing bushing embracing the spindle; a slide on the end bar of the carriage. adjustable to embrace the said bushing and retain the platen detachably upon the said carriage; a shaft parallel with the said platen; a ratchet with curved notches on the end of said platen; an arm with a detent roller to rest in the notches oi" said ratchet; a spring connecting the said arm to the bushing on the platen spindle; a second arm carrying a suitable brake shoe to rest against the platen, having a notch in its end; a spring connected to the said brake arm and to the earriage frame; drawing the said brake arm normally to- 'ward the platen: a lever with a proiiecting pin arranged to engage both the detent arm and the brake arm at different points. whereby the adjustment of said lever regulates the brake on the detent, so that both can be thrown out or both can be thrown in. or they may be brought into independent use by the manipulation of the said lever, coacting for the purpose specified.

3. in a typewriting machine, the combination of the carriage supported by suitable means to reciprocate laterally across the machine, the end bars of which are suitably notched; the platen (l on a suitable spindle; a shaft 1') parallel therewith; a detent arm E with detent roller E pivoted on said shaft; :1 bushing on the platen spindle;

a spring connecting the said bushing to the said'deteno arm an arm G with a brake G pivoted parallel with the necting the said brake arm to the frame; an operating 1ever F with a pin to engage both the said detent arms and the brake arms, whereby the manipulation of said levers effects the control of said brake arms and deten't :irin simultaneously and separately, conciing' for the purpose specified.

. In a typewriting machine, the combination of the carriage supported by suitable means to reciprocate laterally across the machine, the end bars of which are suitably notched; the platen C on a suitable spindle ya shaft 1) parallel therewith; a detent arm E with detent roller F." pivoted on said shaft; a spring for holding the said deient arm to its work; an arm G with a brake G pivoted parallel with the detent arm. and notched at its outer end; a spring connecting the said brake arm to the frame an operating lever 1 with a pin to engage both the said detent arms and the brake arms. whereby the manipulation I of said levers eliects the control of said brake arms and dctent arm simultaneously and separately, co-acting for the purpose Specified. n

5. In a carriage for a typewritingmachine. the combiuation of the carriage; suitable front and rear ball races formed in the said carriage and in the frame of the machine to correspond thereto, the rear of which races are V- a'rooved to embrace the balls and insure straight reciprocation, the trout races oi which are rcspeclively provided with broad ilat parallel contact surfaces in broad grooves; and a ball retainer formed of sheet metal in the front races. the longitudinal sides or which are bent down wardly to enter the lower ball race groove and lit therein loosely and the ends of which are bent upwardly to enter the upper ball race groove and lit therein loosely, courting for the purpose specified.

(3. ln :1 carriage (or a trpewritiug machine. the combi nation with the main typewriter frame-oi a carriage which at one side of the carriage and the corrospoiullugs, side of the main frame is provided with ball races with beveled sides lo embrace the balls, the opposite sides oi said carriage and corrcmwudinr: part of the main frame being provided with ball races the bollouis or which are broad flat opposing surfaces on parallel pianos; a ball in said race and a ball retainer embracing the bull and lilting loosely within the broad groove to keep lhc ball properly directed in its course on the broad bottoms of the said ball races. as specified.

7. In a typewriting machine, the combination of the carriage ways on the typewriting frame, one' of which is supported in a detachable part or bar downwardly depending pins on the said detachable bar, fitting into suitable sockets; and laterally arranged set screws, with to.- pering points to fit with a draw fit into holes in the said pins, for joining the said detachable bar secnrely. to the frame. I

, 8. In a typewriting machine, the combination of the carriage ways on the typewritingframe, one of which is supported in a detachable part or bar, downwardly depending pins on the said detachable bar, fltting'into suit able sockets; and laterally arranged set's'crews for joining the said detachable bar securely to the frame. H 9. in a typewriting machine, the coinbination of a frame; a detachable rail thereon, having a ball race formed therein a carriage frame having an oppositely faced corresponding ball race; a clamp tor joining the carriage to the detachable rail provided with a pin larger than the balls within the race for insertion between the carriages and the detachable rail, co-acting for the purpose specified.

10. In a typewriting machine, the combination of a frame; a detachable rail thereon, having a ball race formed therein; a carriage frame having an oppositely faced corresponding ball race; a clamp for joining the cai-- ,riage to the detachable rail provided with a pin for insertion between the carriages and the detachable rail, co-acting for the purpose specified.

In witness whereof, 1 have hereunto set my hand and 30 seal in the presence of two witnessesv WlLLiAM R. Fox. a s.}

Witnesses:

Karnanmn KUNZI,

CARQLINE D. \VATERDIAX. 

